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	hartrees
Energy at 0K	-77.085852
Energy at 298.15K	-77.085846
HF Energy	-77.085852
Nuclear repulsion energy	23.338604

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	2952	2935	2.98
2	A₁	1568	1559	6.65
3	A₁	1314	1306	1.37
4	B₁	650	646	0.77
5	B₂	3030	3012	4.95
6	B₂	939	934	3.95

Atom	y (Å)	z (Å)
C1	0.000	-0.487
C2	0.000	0.840
H3	0.952	-1.060
H4	-0.952	-1.060

	C1	C2	H3	H4
C1		1.3271	1.1107	1.1107
C2	1.3271		2.1248	2.1248
H3	1.1107	2.1248		1.9034
H4	1.1107	2.1248	1.9034

Number	Element	Mulliken
1	C	-0.034
2	C	-0.103
3	H	0.068
4	H	0.068

All results from a given calculation for CCH₂ (vinylidene)

using model chemistry: PBEPBEultrafine/cc-pVDZ

States and conformations

State 1 (¹A₁)

State 2 (³B₂)

	Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
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<r²>	17.368
(<r²>)^1/2	4.167

All results from a given calculation for CCH2 (vinylidene)

using model chemistry: PBEPBEultrafine/cc-pVDZ

States and conformations

State 1 (1A1)

State 2 (3B2)

All results from a given calculation for CCH₂ (vinylidene)

State 1 (¹A₁)

State 2 (³B₂)